What causes hot start issue on 2002 Jeep Grand Cherokee 6-cylinder?
Suspect solenoid (on starter) going out, if all you are getting is clicks, and your battery cable junctions are clean and tight.
My 94 Jeep Grand Cherokee has the issue that if I lock all the doors with the automatic lock. I can't unlock the door on the driver side with the key without the Security Alarm going off. To resolve this issue, I have to go to the passenger side, unlock the door there with the key, then go around to the driver side and open the door on the driver side with the key.